Question
P6.SP.JC.19010101-A1
If Archie and Riordan paint a house, they take 36 days to finish painting. If Ken and Archie paint the same house, they take 12 days to finish painting. If Riordan and Ian paint the same house, they take 18 days to finish painting. How many days do Ken and Ian take to paint the house if they work together?
4 m
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Primary 6 SPEED P6.SP.JC.19010101

18 Jun 2024, 07:16 PM

If Archie and Riordan paint a house, they take 36 days to finish painting. If Ken and Archie paint the same house, they take 12 days to finish painting. If Riordan and Ian paint the same house, they take 18 days to finish painting. How many days do Ken and Ian take to paint the house if they work together?
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